Ausberry was working on a separate field along with cornerback DJ Hayden and Jones.

Oakland Raiders quarterback Matt Schaub (8) watches the big screen from the sidelines in the first quarter of their preseason NFL game against the Detroit Lions at O.co Coliseum in Oakland, Calif., on Friday, Aug. 15, 2014. (Anda Chu/Bay Area News Group)
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The Raiders must trip eight players from the roster by Tuesday at 1 p.m. Hayden and guard Lucas Nix are eligible to be placed on the physically unable to perform list at that time and then wouldn't count toward the roster.

Two more players -- running back Kory Sheets (Achilles) and tight end Nick Kasa (torn ACL) are eligible to be placed on injured reserve and also wouldn't count.